Documentary portrait on politician John Diefenbaker. People on the street comment on his past performance as prime minister and opposition leader. Journalist Jack Webster, after a news conference, talks about Diefenbaker’s personality and his accessibility to the news media. On an early morning fishing trip on Vancouver Island, Diefenbaker jokes with his companions and recalls historical quips from Canadian politicians. In his office on Parliament Hill, Diefenbaker comments on the accomplishments of past prime minister Mackenzie King. Sequences of Diefenbaker walking his dog in Rockcliffe Park and attending church services with Mrs. Diefenbaker. On a train from Saskatoon to Prince Albert he recalls his childhood and early law practice. Diefenbaker speaks to his hometown kinsmen club, greets townsfolk, and is re-elected leader at the Conservative Party leadership convention. Back in his office on Parliament Hill he answers questions from producer Douglas Leiterman concerning his political ambitions and relations with Quebec, and his decision to discontinue production of the Avro Arrow aircraft.